David Vaccari

SCS Engineers, Inc. provides engineering, construction, long term operations, and maintenance services. It is an environmental consulting and contracting firm serving public and private clients across the nation and around the world. The firm specializes in the assessment, design, permitting, construction, operation and maintenance, and monitoring of sustainable environmental solutions and facilities. It offers waste management and environmental services. SCS Engineers was founded by Robert P. Stearns, Tom E. Conrad, and Curt J. Schmidt in 1970 and is headquartered in Long Beach, CA.

The American Society of Civil Engineers, founded in 1852, is the oldest national engineering society in America. The non-profit company is based in Reston, VA and has subsidiaries in the United States. With over 150,000 members worldwide, the organization advocates for sustainable and resilient practices to maintain and modernize the nation's infrastructure. The company also works to increase investment in infrastructure and improve engineering knowledge and competency. The society's Civil Engineering Landmark Program recognizes historically significant civil engineering projects, structures, and sites.

National Society of Professional Engineers operates as a national organization committed to addressing the professional concerns of licensed PEs across all disciplines. The company was founded in 1934 and is headquartered in Alexandria, VA.

Solid Waste Association of North America, Inc. operates as a professional association in the solid waste field. The firm is committed to advancing solid waste management to resource management through shared emphasis on education, advocacy, and research. The company is headquartered in Silver Spring, MD.